1973-D Kennedy: Doubled Die Reverse / DDR Or MD?

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Author	Replies: 4 / Views: 1,107
BlueSolo Pillar of the Community United States 740 Posts	Posted 03/20/2015 04:08 am Just found another interesting half! This one has got a second image throughout the reverse. I've haven't found a double die yet so I do not have much experience of the look in person. I'm thinking it is MD because of the shelf of the second print, or is this shelf because of the wear the coin has seen? Any tell-tale signs of MD over DD I can look for similar to the mintmark on nickels? Opinions please! "HALF" "DOLLAR" Left Wing Tail Feathers Report this Post to the Staff

valleyco Valued Member 109 Posts	Posted 03/20/2015 04:20 am Strike Doubling Report this Post to the Staff
Silverworld11 Pillar of the Community 613 Posts	Posted 03/20/2015 05:01 am MD from a worn Die. I think you got it spotting MD Coinage. Looks like a spender. Report this Post to the Staff
BlueSolo Pillar of the Community United States 740 Posts	Posted 03/20/2015 05:28 am Thanks for the replies. I guess I am confused with how a Double Die is produced. I have read that it is a (defect?) on the die itself that contains a double image. -How is the actual die doubled? -Would this effect all coins made with the same die? Does this mean there can be a lot of them produced in one batch; most of them taken out while some pass inspection? If I am understanding correctly a double die will (Always?) have notches while a MD will look like the letters slid leaving a trail behind it? Edited by BlueSolo 03/20/2015 05:31 am Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 03/20/2015 06:26 am double(d) die A die that has been struck more than once by a hub in misaligned positions, resulting in doubling of design elements. Before the introduction of hubbing, the individual elements of a coin's design were either engraved or punched into the die, so any doubling was limited to a specific element. With hubbed dies, multiple impressions are needed from the hub to make a single die with adequate detail. When shifting occurs in the alignment between the hub and the die, the die ends up with some of its features doubled - then imparts this doubling to every coin it strikes. The coins struck from such dies are called doubled-die errors - the most famous being the 1955 Doubled Die Lincoln Cent. PCGS uses doubled die as the designation. There are 9 classes of doubled dies and not all show notching. John1 Report this Post to the Staff
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1973-D Kennedy: DDR Or MD?